Allodynie mécanique & Hyperalgésie - page 6 - Publications Scientifiques

Dernière publication 30/06/2008

Polyamine deficient diet to relieve pain hypersensitivity-

There is a compelling body of evidence that N-methyl-d-aspartate receptors (NMDA-R) play a critical role in the development and maintenance of pain...

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    [title] => Polyamine deficient diet to relieve pain hypersensitivity-
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Authors
C. Rivat, P. Richebé, E. Laboureyras, J.-P. Laulin, R. Havouis et al.


Lab
UMR CNRS 5227, “Mouvement-Adaptation-Cognition”, Team “Homéostasie-Allostasie-Pathologie-Réhabilitation”, Bordeaux, France.

Journal
Pain

Abstract
There is a compelling body of evidence that N-methyl-d-aspartate receptors (NMDA-R) play a critical role in the development and maintenance of pain hypersensitivity. However, long-term treatments with NMDA-R antagonists are limited by unacceptable side effects. Since polyamines modulate the functioning of NMDA-R and mainly originate from normal dietary intake and bacterial metabolism in the gut, we developed a nutritional therapy based on dietary polyamine deficiency. Here, we reported that a polyamine deficient diet (PD diet) for 7 days prevented the enhancement of tyrosine phosphorylation of the spinal NR2B subunit-containing NMDA-R associated with inflammation in rats. Based on these data, we studied the ability of PD diet to prevent long-lasting pain hypersensitivity associated with tissue injury on one hind paw by evaluating long-lasting changes in both mechanical nociceptive threshold and weight bearing. A PD diet strongly reduced long-lasting hyperalgesia induced by inflammation or incision, especially in fentanyl-treated rats. Moreover a PD diet also prevented the exaggerated hyperalgesia induced by a second inflammation performed 7 days after the first one. A PD diet also opposed paradoxical hyperalgesia induced by non-nociceptive environmental stress in rats with pain and opioid experiences. A PD diet reversed pain hypersensitivity associated with monoarthritis or neuropathy and restored the analgesic effect of morphine. Since PD diet was devoid of any noticeable side effects, this nutritional therapy could be part of an effective and safe strategy for pre-emptive analgesia and for reducing the transition from acute to chronic pain and its outcomes in various pain syndromes.

BIOSEB Instruments Used
Static Weight Bearing Touch: Incapacitance Test (BIO-SWB-TOUCH-M),Dynamic Weight Bearing 2.0 (BIO-DWB-DUAL)

Keywords/Topics
Allodynie mécanique & Hyperalgésie; Douleur [meta_description] => [meta_keywords] => http://www.sciencedirect.com/science/article/pii/S0304395907004575 [meta_title] => [link_rewrite] => polyamine-deficient-diet-to-relieve-pain-hypersensitivity- [actif_langue] => 1 [read] => 1294 [count_comments] => 0 [id] => 165 [categories] => Array ( [36] => Array ( [id_prestablog_categorie] => 36 [title] => Allodynie mécanique & Hyperalgésie [link_rewrite] => Allodynie-mecanique-Hyperalgesie ) [10] => Array ( [id_prestablog_categorie] => 10 [title] => Douleur [link_rewrite] => Douleur ) [2] => Array ( [id_prestablog_categorie] => 2 [title] => Publications [link_rewrite] => publications ) ) [authors] => [paragraph_crop] => Polyamine deficient diet to relieve pain hypersensitivity. [link_for_unique] => 1 [products_liaison] => Array ( [27] => Array ( [name] => Distribution pondérale statique : Test d'incapacitance (SWB-Touch) [description_short] =>

Test non douloureux pour mesurer le niveau d'inconfort (incapacitance) de petits animaux comme les rats et les souris via leur équilibre postural - indépendamment de l'opérateur. Le test de distribution pondérale statique est l'instrument idéal pour vos recherches en nociception et analgésie impliquant des rongeurs: arthrose, dégénération du cartilage, modèles d'inflammation, modèles de traumatismes nerveux , et bien plus... Notre nouveau SWB-Touch inclue désormais un tout nouvel écran tactile!

Instrument for ratsInstrument for mice

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Un système permettant l'analyse de la posture des animaux par la répartition du poids sur chacune des 4 pattes. Le DWB est un test unique dans l'étude de nombreux modèles de douleurs, principalement non évoquée , neuropathique ou encore inflammatoire ainsi que pour les études sur l'osthéoarthrite et divers affections du SNC.

Le nouvelle version DWB2 intègre une nouvelle interface logiciel plus simple avec gestion des listes d'animaux ainsi que de nouveaux algorithmes d'analyse automatique de la posture.

Instrument for ratsInstrument for mice

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Étendez votre analyse grâce à des calculs posturaux et locomoteurs avancés

Le système de Distribution Pondérale Dynamique (DWB2) de BIOSEB s’enrichit avec l'ajout du Module Postural. Ce complément logiciel optionnel améliore l’analyse standard de la répartition du poids en intégrant des nouveaux calculs conçus pour l’étude de la posture, de la locomotion et de l’activité des animaux.

Développé en collaboration avec le laboratoire du Dr. Tighilet de l’Université Aix-Marseille - CNRS, le Module Postural améliore votre DWB2 en fournissant des paramètres précieux pour les recherches sur la douleur, les troubles vestibulaires et les maladies neurodégénératives.

Instrument for ratsInstrument for mice

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